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Modelling of Energy Storage System from Photoelectric Conversion in a Phase Change Battery

Author

Listed:
  • Anna Karbowniczak

    (Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland)

  • Hubert Latała

    (Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland)

  • Krzysztof Nęcka

    (Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland)

  • Sławomir Kurpaska

    (Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland)

  • Leszek Książek

    (Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, 30-059 Krakow, Poland)

Abstract

The essence of the research was to model the actual energy storage system obtained from photoelectric conversion in a phase change accumulator operating in a foil tunnel. The scope of the work covered the construction of four partial models, i.e., electricity yield from solar radiation conversion for three types of photovoltaic cells (mono- and polycrystalline and CIGS), energy storage in a PCM battery, heat losses in a PCM battery and energy collection from photoelectric conversion in PCM battery. Their construction was based on modelling methods selected on the basis of literature review and previous analyses, i.e., artificial neural networks (ANN), random forest (RF), enhanced regression trees (BRT), MARSplines (MARS), standard multiple regression (SMR), standard C&RT regression trees (CRT), exhaustive CHAID for regression (CHAID). Based on the analysis of the error values (APE, MAPE, ΔESR t ), the best quality models were selected and used in the further part of the work. Based on the developed models, a simulation of the influence of the size of the photovoltaic power plant and the type of cells on the process of storing energy from photoelectric conversion in a PCM battery was carried out. For the battery under study, a PV power output of 9 kWp for mono and polycrystalline panels and 13 kWp for CIGS panels is recommended for reasons of energy storage efficiency. The obtained results made it possible to develop a model determining the amount of energy stored in a phase change battery depending on the power of a photovoltaic power plant and variable solar conditions. In order to store the greatest amount of energy, we should choose a source with a capacity to produce at least 70 kWh of electricity per day. In the final stage of the work, the indicators of solar radiation energy storage in the tested phase change accumulator were determined. For the battery tested, the solar energy storage efficiency can reach 12–13% for mono and polycrystalline panels and less than 7% for CIGS panels.

Suggested Citation

  • Anna Karbowniczak & Hubert Latała & Krzysztof Nęcka & Sławomir Kurpaska & Leszek Książek, 2022. "Modelling of Energy Storage System from Photoelectric Conversion in a Phase Change Battery," Energies, MDPI, vol. 15(3), pages 1-22, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1132-:d:741625
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    Citations

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    Cited by:

    1. Franciéli Lima de Sá & Domingo Ruiz-Caballero & Cleiton Dal’Agnol & William Rafhael da Silva & Samir Ahmad Mussa, 2023. "High Static Gain DC–DC Double Boost Quadratic Converter," Energies, MDPI, vol. 16(17), pages 1-24, September.

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